Earl Domnall of Airgialla

Earl Domnall of Airgialla (2 January 1030-) was the ruler of Airgialla (Oriel) during the late 11th century. Domnall was married to Countess Slaine of Airgialla, and he ruled over Oriel before England' arrival in Ireland. He was deposed in 1069 when the future Einri of Eire and Tyrconnell conquered Airgialla.